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Search found 6489 matches

by ProPower engines
Sat Jul 31, 2021 11:58 pm
Forum: Engine Tech
Topic: Piston?
Replies: 13
Views: 641

Re: Piston?

Opinions on Speedmaster PCE305-1906 pistons. Application is a hobby stock engine on a budget. E-85 fuel 9.8:1 compression/360 cid max....stock crank, eagle SIR rods, stock 350 block..425 hp/torque or less 2 bbl rochester -2701 edelbrock intake, Dart SS or 993/487 GM heads(no porting allowed) -jones...
by ProPower engines
Tue Jul 27, 2021 7:17 pm
Forum: Engine Tech
Topic: LS 3 liner OD gaps
Replies: 5
Views: 206

Re: LS 3 liner OD gaps

If the sleeves are below the block surface its a good chance they have moved down. Check the bottom of the block and see if the step has been damaged to allow the sleeves to fall. If the step is still there then deck the block again and carry on. Some times it happens and in a stock situation goes u...
by ProPower engines
Tue Jul 27, 2021 7:11 pm
Forum: Engine Tech
Topic: Burning Oil w/New Motor - Can't Diagnose
Replies: 20
Views: 888

Re: Burning Oil w/New Motor - Can't Diagnose

Hi, Fighting an issue with a new motor blue smoking when cold. Motor has approx. 140 miles on it, and approx. :45 more run time in testing and tuning. At startup, get too much blue smoke. Tapers off as motor warms up, then is mild. Oil levels do not reduce noticeably, but clearly seeing blue, not b...
by ProPower engines
Wed Jul 21, 2021 4:09 pm
Forum: Engine Tech
Topic: new spark plug issues.
Replies: 5
Views: 250

Re: new spark plug issues.

Faulty construction of the new plugs. Or too much resistance of the new plugs. I would bet the plugs have too much resistance built into them as newer engines will be OK with the extra resistance but the older engines not so much. Change out the plugs for a different brand but same heat range and tr...
by ProPower engines
Wed Jul 21, 2021 3:59 pm
Forum: Engine Tech
Topic: Comp cams cam cores
Replies: 7
Views: 769

Re: Comp cams cam cores

My understanding is there are only a few core makers anyway. From this, can we infer that isky, comp, bullet, howards, etc are all using the same cores of the same quality from the same manufacturers? Is everyone still sourcing domestically for old FT stuff, or are the larger companies buying offsh...
by ProPower engines
Wed Jul 21, 2021 3:26 pm
Forum: Engine Tech
Topic: new spark plug issues.
Replies: 5
Views: 250

Re: new spark plug issues.

Turns out, the NGK plugs are resistor, not good for a weak magneto system, but the question remains, why do the old plugs fire and the new ones don't? I have seen that before as well. the resistor plugs are much more common today then years ago for 2 stroke engines. The older ignitions did not fire...
by ProPower engines
Tue Jul 20, 2021 2:51 pm
Forum: Engine Tech
Topic: Dart heads?
Replies: 12
Views: 760

Re: Dart heads?

I guess that I am not understanding the point of this milling ... IF the compression ratio allowed is merely 9.5/1 maximum as the rules above say. "LOCAL TRACK" has .5 allowable difference in regards to compression ratio(max 10.0 or under) according to the Whistler box that measure ratio(Katech). I...
by ProPower engines
Mon Jul 19, 2021 8:16 pm
Forum: Engine Tech
Topic: Dart heads?
Replies: 12
Views: 760

Re: Dart heads?

USRA HOBBY stock I gather it's best to get bare heads with no valve jobs straight from the manufacture so valve seats are not sunken and it allows better volume in the runner and behind the intake valve. I plan to go with 1.94/1.50 valves but not sure on valve job to yet. I am needing to surface th...
by ProPower engines
Mon Jul 19, 2021 12:17 pm
Forum: Engine Tech
Topic: Dart heads?
Replies: 12
Views: 760

Re: Dart heads?

These heads are made as a stock replacement head and the amount of material removal suggested on the spec sheet is the same as World products has on theirs. Personally I have taken .020 off on an angle then flat milled 060 off with no issues for a local class that runs that head as a spec head with ...
by ProPower engines
Thu Jul 15, 2021 2:57 am
Forum: Engine Tech
Topic: Suitable sealer for tapered crack repair pins.
Replies: 5
Views: 274

Re: Suitable sealer for tapered crack repair pins.

Many years ago We used a product called Irontite as a sealer for taoered pins for cast iron crack repairs. What products available in Australia are suitable gor this Job now. Thanks in advance. Fluid Weld or green high tension Locktite depending upon the amount of heat the repair will see. X2 I alw...
by ProPower engines
Sun Jul 11, 2021 7:02 am
Forum: Engine Tech
Topic: Bolt Stretch on SCAT Connecting Rods
Replies: 28
Views: 951

Re: Bolt Stretch on SCAT Connecting Rods

And the other issue that has plagued builders is the bolt lube. When they changed to the current ultra torque lube in the blue pak from the long time used lube in the white pak builders every where seen an increase needed in the torque value to obtain the recommended stretch value of the bolts. We h...
by ProPower engines
Sun Jul 11, 2021 6:27 am
Forum: Engine Tech
Topic: Fixture & Methods for measuring pushrod for offset rockers. Exc
Replies: 13
Views: 587

Re: Fixture & Methods for measuring pushrod for offset rockers. Exc

Do you have a set of adjustable push rods for checking length?? depending on what your working on will dictate what push rods to use if you have guide plates to locate push rods or if you are using a shaft rocker setup. the reason I mention it is some push rods use a nut that interferes with the pus...
by ProPower engines
Sun Jul 11, 2021 6:20 am
Forum: Engine Tech
Topic: solid flat tappet valve lash
Replies: 25
Views: 1221

Re: solid flat tappet valve lash

when the rocker arms "float" on a common shaft that is bolted down into the head, how does one go about achieving a valve clearance? there are no rocker studs to set the height of the rocker arm. this older junk is harder to work on than the modern stuff regularly coming through my door #-o should ...
by ProPower engines
Thu Jul 08, 2021 12:17 am
Forum: Shop Equipment - For Sale or Wanted
Topic: BHJ Honing Plate
Replies: 2
Views: 171

Re: BHJ Honing Plate

engine75 wrote: Tue Jul 06, 2021 9:47 pm BHJ Honing Plate model MP-1-R, for small block Mopar,
273-360, like new, used twice. $466.00 from BHJ
buy this for $350.00.pictures available.
shipped from 92084.760-630-9094
Iron or aluminum Plate??
What is the plate bore sizes??
by ProPower engines
Wed Jul 07, 2021 1:26 am
Forum: Engine Tech
Topic: Replacement for Proffesional Products 80003
Replies: 17
Views: 836

Re: Replacement for Proffesional Products 80003

If this is a 383 build then you should be able to use any stock steel cover. Just remover the factory pointer. TDC the engine and remount the pointer as needed.The factory balancer is 7" on a mid 90's 350 block. An 8" balancer may interfear with PS pump. Been there. If you need the crank wheel for u...